// ========================================================================= //

// includes
#include "stdio.h"
#include "stdlib.h"
#include "time.h"
#include "string.h"
#include "limits.h"
#include "float.h"



#define JOTAI_NUM_RANDS_ 25

const unsigned rand_primes[JOTAI_NUM_RANDS_] = {179, 103, 479, 647, 229, 37, 271, 557, 263, 607, 18743, 50359, 21929, 48757, 98179, 12907, 52937, 64579, 49957, 52567, 507163, 149939, 412157, 680861, 757751};

int next_i() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_];
}

float next_f() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_] / 757751.0F;
} 


// Usage menu
void usage() {
    printf("%s", "Usage:\n\
    prog [ARGS]\n\
\nARGS:\n\
       0            big-arr\n\
       1            big-arr-10x\n\
       2            empty\n\
\n\
");

}


// ------------------------------------------------------------------------- //

#define NULL ((void*)0)
typedef unsigned long size_t;  // Customize by platform.
typedef long intptr_t; typedef unsigned long uintptr_t;
typedef long scalar_t__;  // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */
typedef  struct TYPE_3__   TYPE_1__ ;

/* Type definitions */
typedef  int uint32_t ;
struct TYPE_3__ {int RDTR; int RIR; } ;
typedef  TYPE_1__ CAN_FIFOMailBox_TypeDef ;

/* Variables and functions */

__attribute__((used)) static int elm327_tx_hook(CAN_FIFOMailBox_TypeDef *to_send) {
  //All ELM traffic must appear on CAN0
  if(((to_send->RDTR >> 4) & 0xf) != 0) return 0;
  //All ISO 15765-4 messages must be 8 bytes long
  if((to_send->RDTR & 0xf) != 8) return 0;

  if(to_send->RIR & 4){
    uint32_t addr = to_send->RIR >> 3;
    //Check valid 29 bit send addresses for ISO 15765-4
    if(!(addr == 0x18DB33F1 || (addr & 0x1FFF00FF) == 0x18DA00F1)) return 0;
  } else {
    uint32_t addr = to_send->RIR >> 21;
    //Check valid 11 bit send addresses for ISO 15765-4
    if(!(addr == 0x7DF || (addr & 0x7F8) == 0x7E0)) return 0;
  }

  return true;
}

// ------------------------------------------------------------------------- //

int main(int argc, char *argv[]) {

    if (argc != 2) {
        usage();
        return 1;
    }

    int opt = atoi(argv[1]);
    switch(opt) {


    // big-arr
    case 0:
    {
          // static_instructions_O0 : 14
          // dynamic_instructions_O0 : 14
          // ------------------------------- 
          // static_instructions_O1 : 7
          // dynamic_instructions_O1 : 7
          // ------------------------------- 
          // static_instructions_O2 : 7
          // dynamic_instructions_O2 : 7
          // ------------------------------- 
          // static_instructions_O3 : 7
          // dynamic_instructions_O3 : 7
          // ------------------------------- 
          // static_instructions_Ofast : 7
          // dynamic_instructions_Ofast : 7
          // ------------------------------- 
          // static_instructions_Os : 7
          // dynamic_instructions_Os : 7
          // ------------------------------- 
          // static_instructions_Oz : 7
          // dynamic_instructions_Oz : 7
          // ------------------------------- 

          int _len_to_send0 = 65025;
          struct TYPE_3__ * to_send = (struct TYPE_3__ *) malloc(_len_to_send0*sizeof(struct TYPE_3__));
          for(int _i0 = 0; _i0 < _len_to_send0; _i0++) {
              to_send[_i0].RDTR = ((-2 * (next_i()%2)) + 1) * next_i();
          to_send[_i0].RIR = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = elm327_tx_hook(to_send);
          printf("%d\n", benchRet); 
          free(to_send);
        
        break;
    }


    // big-arr-10x
    case 1:
    {
          // static_instructions_O0 : 14
          // dynamic_instructions_O0 : 14
          // ------------------------------- 
          // static_instructions_O1 : 7
          // dynamic_instructions_O1 : 7
          // ------------------------------- 
          // static_instructions_O2 : 7
          // dynamic_instructions_O2 : 7
          // ------------------------------- 
          // static_instructions_O3 : 7
          // dynamic_instructions_O3 : 7
          // ------------------------------- 
          // static_instructions_Ofast : 7
          // dynamic_instructions_Ofast : 7
          // ------------------------------- 
          // static_instructions_Os : 7
          // dynamic_instructions_Os : 7
          // ------------------------------- 
          // static_instructions_Oz : 7
          // dynamic_instructions_Oz : 7
          // ------------------------------- 

          int _len_to_send0 = 100;
          struct TYPE_3__ * to_send = (struct TYPE_3__ *) malloc(_len_to_send0*sizeof(struct TYPE_3__));
          for(int _i0 = 0; _i0 < _len_to_send0; _i0++) {
              to_send[_i0].RDTR = ((-2 * (next_i()%2)) + 1) * next_i();
          to_send[_i0].RIR = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = elm327_tx_hook(to_send);
          printf("%d\n", benchRet); 
          free(to_send);
        
        break;
    }


    // empty
    case 2:
    {
          // static_instructions_O0 : 14
          // dynamic_instructions_O0 : 14
          // ------------------------------- 
          // static_instructions_O1 : 7
          // dynamic_instructions_O1 : 7
          // ------------------------------- 
          // static_instructions_O2 : 7
          // dynamic_instructions_O2 : 7
          // ------------------------------- 
          // static_instructions_O3 : 7
          // dynamic_instructions_O3 : 7
          // ------------------------------- 
          // static_instructions_Ofast : 7
          // dynamic_instructions_Ofast : 7
          // ------------------------------- 
          // static_instructions_Os : 7
          // dynamic_instructions_Os : 7
          // ------------------------------- 
          // static_instructions_Oz : 7
          // dynamic_instructions_Oz : 7
          // ------------------------------- 

          int _len_to_send0 = 1;
          struct TYPE_3__ * to_send = (struct TYPE_3__ *) malloc(_len_to_send0*sizeof(struct TYPE_3__));
          for(int _i0 = 0; _i0 < _len_to_send0; _i0++) {
              to_send[_i0].RDTR = ((-2 * (next_i()%2)) + 1) * next_i();
          to_send[_i0].RIR = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = elm327_tx_hook(to_send);
          printf("%d\n", benchRet); 
          free(to_send);
        
        break;
    }

    default:
        usage();
        break;

    }

    return 0;
}
